TYPO3 Page Error Handler Recursive Request Loop DoS before 11.5.16
CVE-2022-36104 Published on September 13, 2022
Denial of Service via Page Error Handling in TYPO3/cms
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. Users are advised to update to TYPO3 version 11.5.16 to resolve this issue. There are no known workarounds for this issue.
Vulnerability Analysis
CVE-2022-36104 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2022-36104
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Affected Versions
typo3 Version >= 11.4.0, < 11.5.16 is affected by CVE-2022-36104Vulnerable Packages
The following package name and versions may be associated with CVE-2022-36104
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| composer | typo3/cms-core | >= 11.4.0, < 11.5.16 | 11.5.16 |
| composer | typo3/cms | >= 11.4.0, < 11.5.16 | 11.5.16 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.